refactor(backend): rename OpenFlare directory to lowercase openflare

backend/openflare/share/edge/updater/restart_unix_test.go

@@ -0,0 +1,18 @@
+//go:build !windows
+
+// Copyright 2026 Arctel.net
+// SPDX-License-Identifier: Apache-2.0
+
+package updater
+
+import (
+	"path/filepath"
+	"testing"
+)
+
+func TestRemoveBackupBinaryIgnoresMissingFile(t *testing.T) {
+	backupPath := filepath.Join(t.TempDir(), "openflare-agent.bak")
+	if err := removeBackupBinary(backupPath); err != nil {
+		t.Fatalf("expected missing backup cleanup to be ignored: %v", err)
+	}
+}